DR. BRIAN LINH NGUYEN (M.D.) – Internal Medicine Physician, NPI 1851314512
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
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Provider Addresses for DR. BRIAN LINH NGUYEN (M.D.)
29798, Haun Road, Sun City, Menifee, Riverside County, California, 92586, United States
SUITE 108
SUN CITY, CA 925866541
Phone: (951) 301-9339
Fax: (951) 301-3980
Type: Location
Sun City Post Office, 9802, West Bell Road, Sun City, Maricopa County, Arizona, 85373, United States
SUN CITY, CA 925861051
Phone: (951) 301-9339
Fax: (951) 301-3980
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 42 Open Payments records for all available years, with a total value of $1,932.
Total Amount is formed as General ($1,932) + Research ($0) + Ownership ($0) = $1,932.
Last reported payment date: 2024-12-11 • Largest payer in this snapshot: Sumitomo Pharma America, Inc. ($1,089).
Total Amount
$1,932
General + Research + Ownership
Payments
42
Total payment records
General Amount
$1,932
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Sumitomo Pharma America, Inc. | $1,089 |
| Abbott Laboratories | $78 |
| Alcon Vision LLC | $63 |
| ABBVIE INC. | $53 |
| Exact Sciences Corporation | $53 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2006-02-14
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20060214000481 | I | Internal Medicine | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 472 | 285 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 332 | 332 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 289 | 197 | $0 |
| 99212 | Established patient office or other outpatient visit, 10-19 minutes | 216 | 135 | $0 |
| 81002 | Urinalysis, manual test | 154 | 92 | $0 |
Insurance plans in this area (ZIP 92586)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | CA | 94060 | Measurement and graphic recording of the amount and speed of breathed air, before and following medication administration | 12 | 12 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine | CA | |
| Internal Medicine | CA |
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